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Efficiently convert rows to columns in sql server
... from yourtable
group by ColumnName, id
order by id
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set @query = N'SELECT ' + @cols + N' from
(
select value, Column...
How do I find a “gap” in running counter with SQL?
...
In MySQL and PostgreSQL:
SELECT id + 1
FROM mytable mo
WHERE NOT EXISTS
(
SELECT NULL
FROM mytable mi
WHERE mi.id = mo.id + 1
)
ORDER BY
id
LIMIT 1
In SQL Server:
SELECT TOP 1
id + 1
FR...
Starting iPhone app development in Linux? [closed]
...ys clear of indicating that you may need to copy necessary iPhone firmware files to your Linux environment. It's not impossible, but just requires additional work, especially for signing the code (there are open alternative solutions out there as well).
Also, take a look at other guides (for the sa...
jQuery AJAX cross domain
...
I had to load webpage from local disk "file:///C:/test/htmlpage.html", call "http://localhost/getxml.php" url, and do this in IE8+ and Firefox12+ browsers, use jQuery v1.7.2 lib to minimize boilerplate code. After reading dozens of articles finally figured it out....
Does MongoDB's $in clause guarantee order
...y have two options.
So let's say that you were matching on the values of _id in your documents with an array that is going to be passed in to the $in as [ 4, 2, 8 ].
Approach using Aggregate
var list = [ 4, 2, 8 ];
db.collection.aggregate([
// Match the selected documents by "_id"
{...
get an element's id
Is there another way to get an DOM element's ID?
8 Answers
8
...
Django Admin - change header 'Django administration' text
...admin base_site.html template to do this. The easiest way is to create the file:
/<projectdir>/templates/admin/base_site.html
This should be a copy of the original base_site.html, except putting in your custom title:
{% block branding %}
<h1 id="site-name">{% trans 'my cool admin con...
How do I print debug messages in the Google Chrome JavaScript Console?
... stack trace to the point of the new Error() invocation (including path to file and line number!).
Both %o and new Error().stack are available in Chrome and Firefox!
Also for stack traces in Firefox use:
console.trace();
As https://developer.mozilla.org/en-US/docs/Web/API/console says.
Happy h...
How to stop mongo DB in one command
...important if running MongoDB in a Docker - docs.docker.com/compose/compose-file/#stop_grace_period . Additional note that CMD ["mongod", "option", "option" ] needs to be used to make sure that MongoDB gets PID 1, then signal sent by Docker will reach your DB.
– laimison
...
Parsing domain from a URL
...-central/source/netwerk/dns/effective_tld_names.dat?raw=1';
$content = file($address);
foreach ($content as $num => $line) {
$line = trim($line);
if($line == '') continue;
if(@substr($line[0], 0, 2) == '/') continue;
$line = @preg_replace("/[^a-zA-Z0-9\.]/"...